use async_trait::async_trait;
use uuid::Uuid;
use chrono::{DateTime, Utc};
use crate::common::errors::DomainError;
use crate::domain::entities::calendar_event::CalendarEvent;

pub type CalendarEventRepositoryResult<T> = Result<T, DomainError>;

/// Repository interface for CalendarEvent entity operations
#[async_trait]
pub trait CalendarEventRepository: Send + Sync + 'static {
    /// Creates a new calendar event
    async fn create_event(&self, event: CalendarEvent) -> CalendarEventRepositoryResult<CalendarEvent>;
    
    /// Updates an existing calendar event
    async fn update_event(&self, event: CalendarEvent) -> CalendarEventRepositoryResult<CalendarEvent>;
    
    /// Deletes a calendar event by ID
    async fn delete_event(&self, id: &Uuid) -> CalendarEventRepositoryResult<()>;
    
    /// Finds a calendar event by its ID
    async fn find_event_by_id(&self, id: &Uuid) -> CalendarEventRepositoryResult<CalendarEvent>;
    
    /// Lists all events in a specific calendar
    async fn list_events_by_calendar(&self, calendar_id: &Uuid) -> CalendarEventRepositoryResult<Vec<CalendarEvent>>;
    
    /// Finds events in a calendar by their summary/title (partial match)
    async fn find_events_by_summary(&self, calendar_id: &Uuid, summary: &str) -> CalendarEventRepositoryResult<Vec<CalendarEvent>>;
    
    /// Gets events in a specific time range for a calendar
    async fn get_events_in_time_range(
        &self, 
        calendar_id: &Uuid, 
        start: &DateTime<Utc>, 
        end: &DateTime<Utc>
    ) -> CalendarEventRepositoryResult<Vec<CalendarEvent>>;
    
    /// Finds an event by its iCalendar UID in a specific calendar
    async fn find_event_by_ical_uid(&self, calendar_id: &Uuid, ical_uid: &str) -> CalendarEventRepositoryResult<Option<CalendarEvent>>;
    
    /// Counts events in a calendar
    async fn count_events_in_calendar(&self, calendar_id: &Uuid) -> CalendarEventRepositoryResult<i64>;
    
    /// Deletes all events in a calendar
    async fn delete_all_events_in_calendar(&self, calendar_id: &Uuid) -> CalendarEventRepositoryResult<i64>;
    
    /// Lists events by calendar with pagination
    async fn list_events_by_calendar_paginated(
        &self, 
        calendar_id: &Uuid,
        limit: i64,
        offset: i64
    ) -> CalendarEventRepositoryResult<Vec<CalendarEvent>>;
    
    /// Finds events with recurrence rules that might occur in a time range
    async fn find_recurring_events_in_range(
        &self,
        calendar_id: &Uuid,
        start: &DateTime<Utc>,
        end: &DateTime<Utc>
    ) -> CalendarEventRepositoryResult<Vec<CalendarEvent>>;
}